Main structures of the heart and the heart rate Flashcards
aorta function
-carries oxygenated blood at high pressure to the arteries of the circulatory system
-the blood has high oxygen & low carbon dioxide
vena cava
carries deoxygenated blood from the rest of the body back to the right atrium
-the blood has low oxygen and high carbon dioxide
pulmonary artery
-carries deoxygenated blood away from the heart to the lungs
-the blood has low oxygen and high carbon dioxide
pulmonary vein
-blood vessels that carry oxygenated blood from your lungs to your heart.
-the blood has high oxygen and low carbon dioxide
coronary arteries function
-deliver oxygen and nutrients to the cardiac muscle cells that make up the heart walls
right atrium function
-moves the deoxygenated blood to the right ventricle through atrio-ventricular valves
-receives deoxygenated blood from the rest of the body
right ventricles
-receives deoxygenated blood and contracts to generate
.a low force to move the blood to the lungs via the pulmonary artery
left atrium
-receives oxygenated blood from lungs
-contracts to generate a small amount of blood to the left ventricle through the atrio-ventricular valves.
left ventricle
-receives oxygenated blood from the left atrium
-contracts to generate a high force to move the oxygenated blood to the rest of the body via the aorta
Arteries carry blood
away from the heart
Veins carry blood
to the heart
what type of tissue is the heart made up of
cardiac muscle tissuse
nervous tissue
what are the hearts valves
atrioventricular valve
semi- lunar valve
what does the muscle tissue do
it contracts to generate a force to move blood through the blood vessels
what does the pacemaker do
it controls the natural rate of the heart beat
